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Harrizon [31]
3 years ago
15

Through ( 4, -1), perp to y = x+ 2

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
5 0

if the line is perpendicular then the slope is the negative reciprocal

m for the given line is 1 so the perpendicular slope is -1

the equation for a line given the slope and a point is

y-y1 = m(x-x1)

y-(-1) = -1(x-4)

y+1 = -1(x-4)

y+1 = -x+4

y= -x+3

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In the diagram at below, m m I need help understanding this, please help!!!
tensa zangetsu [6.8K]

Answer:

m<BAC= 110 degrees

Step-by-step explanation:

Since the outside angle m<BCD is 130 degrees the inside angle m<BCA would be 50 degrees. At this point you should know that inside angles of a triangle add up to 180 degrees so add the two angles that you know then subtract from 180 degrees. 50+20= 70 degrees and 180-70= 110 degrees.

4 0
3 years ago
Need help due in less than a hour!
sergij07 [2.7K]

i don't know how to explain it I can just tell you that 7 is (1,5) 8 is (1,40) 9 is (-16,-7) and 10 is (8,5)

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3 years ago
DUE IN 10 MINUTES!! PLEASE ANSWER THESE QUESTIONS BELOW. 100 POINTS!!
expeople1 [14]

Answer:

<u>Here is ur answer </u><u>:</u>

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8 0
3 years ago
Nishi invests £3500 at 4% interest per year. Work out how much she will have altogether after: 2 years​
Crazy boy [7]

Answer:

£3780

Step-by-step explanation:

P= £3500, R=4%, t=2years

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7 0
3 years ago
An inelastic collision occurs between a large truck and smaller sedan. Calculate the final velocity of the objects and explain t
k0ka [10]

The final velocity is 15.8 m/s in the forward direction

Step-by-step explanation:

An inelastic collision occurs when the two object after the collision stick together.

In any case, the total momentum of the system is conserved before and after the collision, in absence of external forces. Therefore, we can write:

p_i = p_f\\m u + MU = (m+M)v

where in this problem:

m = 1300 kg is the mass of the small sedan

u = 20 m/s is the initial velocity of the small sedan

M = 7100 kg is the mass of the truck

U = 15 m/s is the initial velocity of the truck

v is the final combined velocity of the small sedan + truck

Here we have taken both the velocity of the sedan and the truck in the positive (forward) direction

Solving the equation for v, we find the final velocity:

v=\frac{mu+MU}{m+M}=\frac{(1300)(20)+(7100)(15)}{1300+7100}=15.8 m/s

And since the sign is positive, this means that is direction is the same as the initial direction of the sedan and the truck, so forward.

Learn more about collisions:

brainly.com/question/13966693#

brainly.com/question/6439920

#LearnwithBrainly

7 0
4 years ago
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